On the first day her family moved to their new house, 5 year old Ami-chan made friends with three talking animals who came out of a door in her bedroom floor, which she finds out leads to Animal Yokocho, another world. The three are Issa, an overly innocent, soft-spoken panda, Kenta, a highly strung, red-scarf-loving bear who puts on an almost constant tough-guy act, and Iyo, a rabbit who usually holds her own well-being and enjoyment over the happiness (and safety) of her “friends.” Even at only 5 years old, Ami-chan is easily the most rational of the group, and she’s a little wary at first, but she eventually comes around and starts spending her free time with them.